Home / 78,687,295.57-108,588,572.49-43,404,304.78

Finding the Fourth Proportional to 78,687,295.57, 108,588,572.49 and 43,404,304.78

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Solution

The fourth proportional to 78,687,295.57, 108,588,572.49 and 43,404,304.78 is: 59,897,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,687,295.57 : 108,588,572.49 = 43,404,304.78 : x
  2. Step 2: Convert to fraction form
    78,687,295.57/108,588,572.49 = 43,404,304.78/x
  3. Step 3: Cross multiply
    78,687,295.57x = 108,588,572.49 × 43,404,304.78
  4. Step 4: Simplify right side
    78,687,295.57x = 4,713,211,496,279,586
  5. Step 5: Solve for x
    x = 4,713,211,496,279,586/78,687,295.57
  6. Step 6: Final answer
    x = 59,897,998.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.